Flexible printed circuit board



FIG. 1 is a perspective view of a flexible printed circuit board showing our new design;

FIG. 2 is a front elevational view thereof, a rear elevational view thereof being a mirror image;

FIG. 3 is a right side elevational view thereof, a left side elevational view thereof being a mirror image;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a sectional view thereof along the line 6-6 of FIG. 2.

The portions in broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a flexible printed circuit board, as shown and described. 